1311143010203 has 16 divisors (see below), whose sum is σ = 1457982446592. Its totient is φ = 1170895716000.

The previous prime is 1311143010161. The next prime is 1311143010209. The reversal of 1311143010203 is 3020103411131.

It is a cyclic number.

It is not a de Polignac number, because 1311143010203 - 2⁶ = 1311143010139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311143010209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875948 + ... + 1841078.

It is an arithmetic number, because the mean of its divisors is an integer number (91123902912).

Almost surely, 2^{1311143010203} is an apocalyptic number.

1311143010203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1311143010203 is a deficient number, since it is larger than the sum of its proper divisors (146839436389).

1311143010203 is a wasteful number, since it uses less digits than its factorization.

1311143010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968546.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1311143010203 its reverse (3020103411131), we get a palindrome (4331246421334).

The spelling of 1311143010203 in words is "one trillion, three hundred eleven billion, one hundred forty-three million, ten thousand, two hundred three".